Auto merge of #118491 - cuviper:aarch64-stack-probes, r=wesleywiser

Enable stack probes on aarch64 for LLVM 18 I tested this on `aarch64-unknown-linux-gnu` with LLVM main (~18). cc #77071, to be closed once we upgrade our LLVM submodule.
rust-lang · Dec 14, 2023 · e6d1b0e · e6d1b0e
2 parents 5f73b00 + 233de9d
commit e6d1b0e
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Showing 33 changed files with 86 additions and 65 deletions.
diff --git a/compiler/rustc_target/src/spec/base/apple/mod.rs b/compiler/rustc_target/src/spec/base/apple/mod.rs
@@ -1,8 +1,8 @@
 use std::{borrow::Cow, env};
 
 use crate::spec::{add_link_args, add_link_args_iter};
-use crate::spec::{cvs, Cc, DebuginfoKind, FramePointer, LinkArgs};
-use crate::spec::{LinkerFlavor, Lld, SplitDebuginfo, StaticCow, Target, TargetOptions};
+use crate::spec::{cvs, Cc, DebuginfoKind, FramePointer, LinkArgs, LinkerFlavor, Lld};
+use crate::spec::{SplitDebuginfo, StackProbeType, StaticCow, Target, TargetOptions};
 
 #[cfg(test)]
 mod tests;
@@ -81,6 +81,14 @@ impl Arch {
             Arm64_sim => "apple-a12",
         }
     }
+
+    fn stack_probes(self) -> StackProbeType {
+        match self {
+            Armv7k | Armv7s => StackProbeType::None,
+            Arm64 | Arm64e | Arm64_32 | I386 | I686 | X86_64 | X86_64h | X86_64_sim
+            | X86_64_macabi | Arm64_macabi | Arm64_sim => StackProbeType::Inline,
+        }
+    }
 }
 
 fn pre_link_args(os: &'static str, arch: Arch, abi: &'static str) -> LinkArgs {
@@ -147,6 +155,7 @@ pub fn opts(os: &'static str, arch: Arch) -> TargetOptions {
         abi_return_struct_as_int: true,
         emit_debug_gdb_scripts: false,
         eh_frame_header: false,
+        stack_probes: arch.stack_probes(),
 
         debuginfo_kind: DebuginfoKind::DwarfDsym,
         // The historical default for macOS targets is to run `dsymutil` which

diff --git a/compiler/rustc_target/src/spec/targets/aarch64_be_unknown_linux_gnu.rs b/compiler/rustc_target/src/spec/targets/aarch64_be_unknown_linux_gnu.rs
@@ -1,5 +1,5 @@
 use crate::abi::Endian;
-use crate::spec::{base, Target, TargetOptions};
+use crate::spec::{base, StackProbeType, Target, TargetOptions};
 
 pub fn target() -> Target {
     Target {
@@ -10,6 +10,7 @@ pub fn target() -> Target {
         options: TargetOptions {
             features: "+v8a,+outline-atomics".into(),
             max_atomic_width: Some(128),
+            stack_probes: StackProbeType::Inline,
             mcount: "\u{1}_mcount".into(),
             endian: Endian::Big,
             ..base::linux_gnu::opts()

diff --git a/compiler/rustc_target/src/spec/targets/aarch64_be_unknown_linux_gnu_ilp32.rs b/compiler/rustc_target/src/spec/targets/aarch64_be_unknown_linux_gnu_ilp32.rs
@@ -1,5 +1,5 @@
 use crate::abi::Endian;
-use crate::spec::{base, Target, TargetOptions};
+use crate::spec::{base, StackProbeType, Target, TargetOptions};
 
 pub fn target() -> Target {
     let mut base = base::linux_gnu::opts();
@@ -13,6 +13,7 @@ pub fn target() -> Target {
         options: TargetOptions {
             abi: "ilp32".into(),
             features: "+v8a,+outline-atomics".into(),
+            stack_probes: StackProbeType::Inline,
             mcount: "\u{1}_mcount".into(),
             endian: Endian::Big,
             ..base

diff --git a/compiler/rustc_target/src/spec/targets/aarch64_be_unknown_netbsd.rs b/compiler/rustc_target/src/spec/targets/aarch64_be_unknown_netbsd.rs
@@ -1,5 +1,5 @@
 use crate::abi::Endian;
-use crate::spec::{base, Target, TargetOptions};
+use crate::spec::{base, StackProbeType, Target, TargetOptions};
 
 pub fn target() -> Target {
     Target {
@@ -10,6 +10,7 @@ pub fn target() -> Target {
         options: TargetOptions {
             mcount: "__mcount".into(),
             max_atomic_width: Some(128),
+            stack_probes: StackProbeType::Inline,
             endian: Endian::Big,
             ..base::netbsd::opts()
         },

diff --git a/compiler/rustc_target/src/spec/targets/aarch64_kmc_solid_asp3.rs b/compiler/rustc_target/src/spec/targets/aarch64_kmc_solid_asp3.rs
@@ -1,4 +1,4 @@
-use crate::spec::{base, RelocModel, Target, TargetOptions};
+use crate::spec::{base, RelocModel, StackProbeType, Target, TargetOptions};
 
 pub fn target() -> Target {
     let base = base::solid::opts("asp3");
@@ -13,6 +13,7 @@ pub fn target() -> Target {
             relocation_model: RelocModel::Static,
             disable_redzone: true,
             max_atomic_width: Some(128),
+            stack_probes: StackProbeType::Inline,
             ..base
         },
     }

diff --git a/compiler/rustc_target/src/spec/targets/aarch64_linux_android.rs b/compiler/rustc_target/src/spec/targets/aarch64_linux_android.rs
@@ -1,4 +1,4 @@
-use crate::spec::{base, SanitizerSet, Target, TargetOptions};
+use crate::spec::{base, SanitizerSet, StackProbeType, Target, TargetOptions};
 
 // See https://developer.android.com/ndk/guides/abis.html#arm64-v8a
 // for target ABI requirements.
@@ -14,6 +14,7 @@ pub fn target() -> Target {
             // As documented in https://developer.android.com/ndk/guides/cpu-features.html
             // the neon (ASIMD) and FP must exist on all android aarch64 targets.
             features: "+v8a,+neon,+fp-armv8".into(),
+            stack_probes: StackProbeType::Inline,
             supported_sanitizers: SanitizerSet::CFI
                 | SanitizerSet::HWADDRESS
                 | SanitizerSet::MEMTAG

diff --git a/compiler/rustc_target/src/spec/targets/aarch64_nintendo_switch_freestanding.rs b/compiler/rustc_target/src/spec/targets/aarch64_nintendo_switch_freestanding.rs
@@ -1,4 +1,6 @@
-use crate::spec::{Cc, LinkerFlavor, Lld, PanicStrategy, RelroLevel, Target, TargetOptions};
+use crate::spec::{
+    Cc, LinkerFlavor, Lld, PanicStrategy, RelroLevel, StackProbeType, Target, TargetOptions,
+};
 
 const LINKER_SCRIPT: &str = include_str!("./aarch64_nintendo_switch_freestanding_linker_script.ld");
 
@@ -16,6 +18,7 @@ pub fn target() -> Target {
             link_script: Some(LINKER_SCRIPT.into()),
             os: "horizon".into(),
             max_atomic_width: Some(128),
+            stack_probes: StackProbeType::Inline,
             panic_strategy: PanicStrategy::Abort,
             position_independent_executables: true,
             dynamic_linking: true,

diff --git a/compiler/rustc_target/src/spec/targets/aarch64_unknown_freebsd.rs b/compiler/rustc_target/src/spec/targets/aarch64_unknown_freebsd.rs
@@ -1,4 +1,4 @@
-use crate::spec::{base, SanitizerSet, Target, TargetOptions};
+use crate::spec::{base, SanitizerSet, StackProbeType, Target, TargetOptions};
 
 pub fn target() -> Target {
     Target {
@@ -9,6 +9,7 @@ pub fn target() -> Target {
         options: TargetOptions {
             features: "+v8a".into(),
             max_atomic_width: Some(128),
+            stack_probes: StackProbeType::Inline,
             supported_sanitizers: SanitizerSet::ADDRESS
                 | SanitizerSet::CFI
                 | SanitizerSet::MEMORY

diff --git a/compiler/rustc_target/src/spec/targets/aarch64_unknown_fuchsia.rs b/compiler/rustc_target/src/spec/targets/aarch64_unknown_fuchsia.rs
@@ -1,4 +1,4 @@
-use crate::spec::{base, SanitizerSet, Target, TargetOptions};
+use crate::spec::{base, SanitizerSet, StackProbeType, Target, TargetOptions};
 
 pub fn target() -> Target {
     Target {
@@ -9,6 +9,7 @@ pub fn target() -> Target {
         options: TargetOptions {
             features: "+v8a".into(),
             max_atomic_width: Some(128),
+            stack_probes: StackProbeType::Inline,
             supported_sanitizers: SanitizerSet::ADDRESS
                 | SanitizerSet::CFI
                 | SanitizerSet::SHADOWCALLSTACK,

diff --git a/compiler/rustc_target/src/spec/targets/aarch64_unknown_hermit.rs b/compiler/rustc_target/src/spec/targets/aarch64_unknown_hermit.rs
@@ -1,4 +1,4 @@
-use crate::spec::{base, Target, TargetOptions};
+use crate::spec::{base, StackProbeType, Target, TargetOptions};
 
 pub fn target() -> Target {
     Target {
@@ -9,6 +9,7 @@ pub fn target() -> Target {
         options: TargetOptions {
             features: "+v8a,+strict-align,+neon,+fp-armv8".into(),
             max_atomic_width: Some(128),
+            stack_probes: StackProbeType::Inline,
             ..base::hermit::opts()
         },
     }

diff --git a/compiler/rustc_target/src/spec/targets/aarch64_unknown_linux_gnu.rs b/compiler/rustc_target/src/spec/targets/aarch64_unknown_linux_gnu.rs
@@ -1,4 +1,4 @@
-use crate::spec::{base, SanitizerSet, Target, TargetOptions};
+use crate::spec::{base, SanitizerSet, StackProbeType, Target, TargetOptions};
 
 pub fn target() -> Target {
     Target {
@@ -10,6 +10,7 @@ pub fn target() -> Target {
             features: "+v8a,+outline-atomics".into(),
             mcount: "\u{1}_mcount".into(),
             max_atomic_width: Some(128),
+            stack_probes: StackProbeType::Inline,
             supported_sanitizers: SanitizerSet::ADDRESS
                 | SanitizerSet::CFI
                 | SanitizerSet::LEAK

diff --git a/compiler/rustc_target/src/spec/targets/aarch64_unknown_linux_gnu_ilp32.rs b/compiler/rustc_target/src/spec/targets/aarch64_unknown_linux_gnu_ilp32.rs
@@ -1,4 +1,4 @@
-use crate::spec::{base, Target, TargetOptions};
+use crate::spec::{base, StackProbeType, Target, TargetOptions};
 
 pub fn target() -> Target {
     Target {
@@ -10,6 +10,7 @@ pub fn target() -> Target {
             abi: "ilp32".into(),
             features: "+v8a,+outline-atomics".into(),
             max_atomic_width: Some(128),
+            stack_probes: StackProbeType::Inline,
             mcount: "\u{1}_mcount".into(),
             ..base::linux_gnu::opts()
         },

diff --git a/compiler/rustc_target/src/spec/targets/aarch64_unknown_linux_musl.rs b/compiler/rustc_target/src/spec/targets/aarch64_unknown_linux_musl.rs
@@ -1,10 +1,11 @@
-use crate::spec::{base, SanitizerSet, Target, TargetOptions};
+use crate::spec::{base, SanitizerSet, StackProbeType, Target, TargetOptions};
 
 pub fn target() -> Target {
     let mut base = base::linux_musl::opts();
     base.max_atomic_width = Some(128);
     base.supports_xray = true;
     base.features = "+v8a".into();
+    base.stack_probes = StackProbeType::Inline;
     base.supported_sanitizers = SanitizerSet::ADDRESS
         | SanitizerSet::CFI
         | SanitizerSet::LEAK

diff --git a/compiler/rustc_target/src/spec/targets/aarch64_unknown_linux_ohos.rs b/compiler/rustc_target/src/spec/targets/aarch64_unknown_linux_ohos.rs
@@ -1,5 +1,5 @@
 use crate::spec::SanitizerSet;
-use crate::spec::{base, Target, TargetOptions};
+use crate::spec::{base, StackProbeType, Target, TargetOptions};
 
 pub fn target() -> Target {
     let mut base = base::linux_ohos::opts();
@@ -14,6 +14,7 @@ pub fn target() -> Target {
         options: TargetOptions {
             features: "+reserve-x18".into(),
             mcount: "\u{1}_mcount".into(),
+            stack_probes: StackProbeType::Inline,
             supported_sanitizers: SanitizerSet::ADDRESS
                 | SanitizerSet::CFI
                 | SanitizerSet::LEAK

diff --git a/compiler/rustc_target/src/spec/targets/aarch64_unknown_netbsd.rs b/compiler/rustc_target/src/spec/targets/aarch64_unknown_netbsd.rs
@@ -1,4 +1,4 @@
-use crate::spec::{base, Target, TargetOptions};
+use crate::spec::{base, StackProbeType, Target, TargetOptions};
 
 pub fn target() -> Target {
     Target {
@@ -10,6 +10,7 @@ pub fn target() -> Target {
             features: "+v8a".into(),
             mcount: "__mcount".into(),
             max_atomic_width: Some(128),
+            stack_probes: StackProbeType::Inline,
             ..base::netbsd::opts()
         },
     }

diff --git a/compiler/rustc_target/src/spec/targets/aarch64_unknown_none.rs b/compiler/rustc_target/src/spec/targets/aarch64_unknown_none.rs
@@ -7,7 +7,8 @@
 // For example, `-C target-cpu=cortex-a53`.
 
 use crate::spec::{
-    Cc, LinkerFlavor, Lld, PanicStrategy, RelocModel, SanitizerSet, Target, TargetOptions,
+    Cc, LinkerFlavor, Lld, PanicStrategy, RelocModel, SanitizerSet, StackProbeType, Target,
+    TargetOptions,
 };
 
 pub fn target() -> Target {
@@ -24,6 +25,7 @@ pub fn target() -> Target {
         relocation_model: RelocModel::Static,
         disable_redzone: true,
         max_atomic_width: Some(128),
+        stack_probes: StackProbeType::Inline,
         panic_strategy: PanicStrategy::Abort,
         ..Default::default()
     };

diff --git a/compiler/rustc_target/src/spec/targets/aarch64_unknown_none_softfloat.rs b/compiler/rustc_target/src/spec/targets/aarch64_unknown_none_softfloat.rs
@@ -6,7 +6,9 @@
 //
 // For example, `-C target-cpu=cortex-a53`.
 
-use crate::spec::{Cc, LinkerFlavor, Lld, PanicStrategy, RelocModel, Target, TargetOptions};
+use crate::spec::{
+    Cc, LinkerFlavor, Lld, PanicStrategy, RelocModel, StackProbeType, Target, TargetOptions,
+};
 
 pub fn target() -> Target {
     let opts = TargetOptions {
@@ -17,6 +19,7 @@ pub fn target() -> Target {
         relocation_model: RelocModel::Static,
         disable_redzone: true,
         max_atomic_width: Some(128),
+        stack_probes: StackProbeType::Inline,
         panic_strategy: PanicStrategy::Abort,
         ..Default::default()
     };

diff --git a/compiler/rustc_target/src/spec/targets/aarch64_unknown_openbsd.rs b/compiler/rustc_target/src/spec/targets/aarch64_unknown_openbsd.rs
@@ -1,4 +1,4 @@
-use crate::spec::{base, Target, TargetOptions};
+use crate::spec::{base, StackProbeType, Target, TargetOptions};
 
 pub fn target() -> Target {
     Target {
@@ -9,6 +9,7 @@ pub fn target() -> Target {
         options: TargetOptions {
             features: "+v8a".into(),
             max_atomic_width: Some(128),
+            stack_probes: StackProbeType::Inline,
             ..base::openbsd::opts()
         },
     }

diff --git a/compiler/rustc_target/src/spec/targets/aarch64_unknown_redox.rs b/compiler/rustc_target/src/spec/targets/aarch64_unknown_redox.rs
@@ -1,8 +1,9 @@
-use crate::spec::{base, Target};
+use crate::spec::{base, StackProbeType, Target};
 
 pub fn target() -> Target {
     let mut base = base::redox::opts();
     base.max_atomic_width = Some(128);
+    base.stack_probes = StackProbeType::Inline;
     base.features = "+v8a".into();
 
     Target {

diff --git a/compiler/rustc_target/src/spec/targets/aarch64_unknown_teeos.rs b/compiler/rustc_target/src/spec/targets/aarch64_unknown_teeos.rs
@@ -1,9 +1,10 @@
-use crate::spec::{base, Target};
+use crate::spec::{base, StackProbeType, Target};
 
 pub fn target() -> Target {
     let mut base = base::teeos::opts();
     base.features = "+strict-align,+neon,+fp-armv8".into();
     base.max_atomic_width = Some(128);
+    base.stack_probes = StackProbeType::Inline;
 
     Target {
         llvm_target: "aarch64-unknown-none".into(),

diff --git a/compiler/rustc_target/src/spec/targets/aarch64_wrs_vxworks.rs b/compiler/rustc_target/src/spec/targets/aarch64_wrs_vxworks.rs
@@ -1,4 +1,4 @@
-use crate::spec::{base, Target, TargetOptions};
+use crate::spec::{base, StackProbeType, Target, TargetOptions};
 
 pub fn target() -> Target {
     Target {
@@ -9,6 +9,7 @@ pub fn target() -> Target {
         options: TargetOptions {
             features: "+v8a".into(),
             max_atomic_width: Some(128),
+            stack_probes: StackProbeType::Inline,
             ..base::vxworks::opts()
         },
     }

diff --git a/compiler/rustc_target/src/spec/targets/i386_apple_ios.rs b/compiler/rustc_target/src/spec/targets/i386_apple_ios.rs
@@ -1,5 +1,5 @@
 use crate::spec::base::apple::{ios_sim_llvm_target, opts, Arch};
-use crate::spec::{StackProbeType, Target, TargetOptions};
+use crate::spec::{Target, TargetOptions};
 
 pub fn target() -> Target {
     let arch = Arch::I386;
@@ -14,10 +14,6 @@ pub fn target() -> Target {
             f64:32:64-f80:128-n8:16:32-S128"
             .into(),
         arch: arch.target_arch(),
-        options: TargetOptions {
-            max_atomic_width: Some(64),
-            stack_probes: StackProbeType::Inline,
-            ..opts("ios", arch)
-        },
+        options: TargetOptions { max_atomic_width: Some(64), ..opts("ios", arch) },
     }
 }
diff --git a/compiler/rustc_target/src/spec/targets/i686_apple_darwin.rs b/compiler/rustc_target/src/spec/targets/i686_apple_darwin.rs
@@ -1,13 +1,12 @@
 use crate::spec::base::apple::{macos_llvm_target, opts, Arch};
-use crate::spec::{Cc, FramePointer, LinkerFlavor, Lld, StackProbeType, Target, TargetOptions};
+use crate::spec::{Cc, FramePointer, LinkerFlavor, Lld, Target, TargetOptions};
 
 pub fn target() -> Target {
     // ld64 only understands i386 and not i686
     let arch = Arch::I386;
     let mut base = opts("macos", arch);
     base.max_atomic_width = Some(64);
     base.add_pre_link_args(LinkerFlavor::Darwin(Cc::Yes, Lld::No), &["-m32"]);
-    base.stack_probes = StackProbeType::Inline;
     base.frame_pointer = FramePointer::Always;
 
     Target {

diff --git a/compiler/rustc_target/src/spec/targets/x86_64_apple_darwin.rs b/compiler/rustc_target/src/spec/targets/x86_64_apple_darwin.rs
@@ -1,14 +1,13 @@
 use crate::spec::base::apple::{macos_llvm_target, opts, Arch};
 use crate::spec::{Cc, FramePointer, LinkerFlavor, Lld, SanitizerSet};
-use crate::spec::{StackProbeType, Target, TargetOptions};
+use crate::spec::{Target, TargetOptions};
 
 pub fn target() -> Target {
     let arch = Arch::X86_64;
     let mut base = opts("macos", arch);
     base.max_atomic_width = Some(128); // penryn+ supports cmpxchg16b
     base.frame_pointer = FramePointer::Always;
     base.add_pre_link_args(LinkerFlavor::Darwin(Cc::Yes, Lld::No), &["-m64"]);
-    base.stack_probes = StackProbeType::Inline;
     base.supported_sanitizers =
         SanitizerSet::ADDRESS | SanitizerSet::CFI | SanitizerSet::LEAK | SanitizerSet::THREAD;
 

diff --git a/compiler/rustc_target/src/spec/targets/x86_64_apple_ios.rs b/compiler/rustc_target/src/spec/targets/x86_64_apple_ios.rs
@@ -1,5 +1,5 @@
 use crate::spec::base::apple::{ios_sim_llvm_target, opts, Arch};
-use crate::spec::{SanitizerSet, StackProbeType, Target, TargetOptions};
+use crate::spec::{SanitizerSet, Target, TargetOptions};
 
 pub fn target() -> Target {
     let arch = Arch::X86_64_sim;
@@ -12,10 +12,6 @@ pub fn target() -> Target {
         data_layout: "e-m:o-p270:32:32-p271:32:32-p272:64:64-i64:64-f80:128-n8:16:32:64-S128"
             .into(),
         arch: arch.target_arch(),
-        options: TargetOptions {
-            max_atomic_width: Some(128),
-            stack_probes: StackProbeType::Inline,
-            ..base
-        },
+        options: TargetOptions { max_atomic_width: Some(128), ..base },
     }
 }